E singura explicație.
Dar, dacă tot le-ai pierdut însă ai backup-ul, poți să cauți pe net diverse rezolvări, neortodoxe.
Ca de exemplu:
Ok - here is a crazy fix.
After accidentally deleting contacts on the iphone 4 and then pluging it into itunes while failing to stop an automatic backup - (thereby overwriting itunes contacts with the now blank contacts from the iphone (all gone…) my wife came up with the following fix…
1. Open message app - Pick a message thread which has a name.
2. Scroll up and open contact info. There was the contact.
3. Then select - ‘share contact’ - choose ‘by message’ - and send it to yourself.
4. Then you will recieve this message as ‘attachment: 1 contact’.
5. Open it and then select ‘add to existing contact’. When this opens you can see all of your contacts.
She did this three or four times and played around some more with different messages and suddenly by the fourth time you could see all the contacts through the contact app. This last bit is a little vague but at least by step 5 you can see that all your contacts are still in your phone somewhere. Play around after that and with a little luck someone can add the details of the last step.
Good luck - hope you can also save $99 buying software to do this for you.
vezi aici https://discussions.apple.com/thread/4257192?start=0&tstart=0